Dell OptiPlex 390 Owners Manual - Page 70

Power Button, A possible system board failure has occurred. - power connector

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LED Power Button add the peripheral cards back one by one until you find the bad one. Problem Description Power connector not installed properly. Troubleshooting Steps Re-seat the 2x2 power connector from the power supply unit. LED Power Button Problem Description Troubleshooting Steps Possible peripheral card or system board failure has occurred. Remove all peripheral cards from the PCI and PCI-E slots and re-start the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one. LED Power Button Problem Description Troubleshooting Steps A possible system board failure has occurred. • Disconnect all internal and external peripherals, and re-start the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one. 70

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add the peripheral cards back one by one until you find
the bad one.
LED
Power Button
Problem Description
Power connector not installed properly.
Troubleshooting Steps
Re-seat the 2x2 power connector from the power
supply unit.
LED
Power Button
Problem Description
Possible peripheral card or system board failure has
occurred.
Troubleshooting
Steps
Remove all peripheral cards from the PCI and PCI-E
slots and re-start the computer. If the computer boots,
add the peripheral cards back one by one until you find
the bad one.
LED
Power Button
Problem Description
A possible system board failure has occurred.
Troubleshooting
Steps
•
Disconnect all internal and external peripherals,
and re-start the computer. If the computer boots,
add the peripheral cards back one by one until you
find the bad one.
70